Welcome to dabes hat division!
Most members just seem to sit around watching anime all day, but every once in awhile you get someone who can multi-task - these are the wm1 pyros. They have dual monitors. They put anime on one screen, TF2 on the other, and proceed to watch anime while holding down w+m1. Some of them even get creative and go buy rocks from the Mann Co Store specifically designed to sit on the w key and the mouse 1 button.
Anyone you see actually playing the game is probably a bot.
Did I mention you should check your sanity at the door?